#if       defined(_WIN32)
    #include <windows.h>
#elif     !defined(HEADLESS)
    #include <X11/Xutil.h>
    #include <SDL_syswm.h>
        #include <wetwm.h>
#endif // defined(_WIN32)

void WindowManagerHelper::TaskBarAlert(bool enable) {
#if       defined(_WIN32)
    if (enable) {
        //flashAnimate(); // kick the first one immediately
        FlashWindow(winId(), true);
    }
#elif     !defined(HEADLESS)
    /* If you're looking for KDE-based solution then here it is:
     * You have to include <wetwm.h> and this will work.
     * Thanks go to Latem for pointing me in the right direction.
        #include <wetwm.h>
        NETWinInfo info(qt_xdisplay(), this->winId(), qt_xrootwin(), 0);
        if (enable) { info.setState(NET::DemandsAttention, NET::DemandsAttention); }
        else { info.setState(0, NET::DemandsAttention); }
     */

    // KDE-based solution
    /*SDL_SysWMinfo sdlinfo;
    SDL_VERSION(&sdlinfo.version);
    if (SDL_GetWMInfo(&sdlinfo)) {
        Display* xdisplay = sdlinfo.info.x11.display;

        // Testing ...
        //Window rootwin = sdlinfo.info.x11.window;
        //Window winId = sdlinfo.info.x11.wmwindow;

        // Testing ...
        //Window rootwin = sdlinfo.info.x11.wmwindow;
        //Window winId = sdlinfo.info.x11.window;

        // Testing ...
        Window rootwin = sdlinfo.info.x11.window;
        Window winId = sdlinfo.info.x11.window;

        // Testing ...
        //Window rootwin = sdlinfo.info.x11.wmwindow;
        //Window winId = sdlinfo.info.x11.wmwindow;

        //Display* xdisplay = qt_xdisplay();
        //Window rootwin = qt_xrootwin();
        //Window winId = this->winId();

        sdlinfo.info.x11.lock_func();
        NETWinInfo info(xdisplay, winId, rootwin, 0);
        if (enable) {
            info.setState(NET::DemandsAttention, NET::DemandsAttention);
        } else {
            info.setState(0, NET::DemandsAttention);
        }
        sdlinfo.info.x11.unlock_func();
    }*/

    // Xlib-based solution
    SDL_SysWMinfo sdlinfo;
    SDL_VERSION(&sdlinfo.version);
    if (SDL_GetWMInfo(&sdlinfo)) {
        Display* xdisplay = sdlinfo.info.x11.display;

        // NO
        //Window rootwin = sdlinfo.info.x11.window;
        //Window winId = sdlinfo.info.x11.wmwindow;

        // NO
        //Window rootwin = sdlinfo.info.x11.wmwindow;
        //Window winId = sdlinfo.info.x11.window;

        // NO
        //Window rootwin = sdlinfo.info.x11.window;
        //Window winId = sdlinfo.info.x11.window;

        // Testing ...
        Window rootwin = sdlinfo.info.x11.wmwindow;
        Window winId = sdlinfo.info.x11.wmwindow;

        //Display* xdisplay = qt_xdisplay();
        //Window rootwin = qt_xrootwin();
        //Window winId = this->winId();

        sdlinfo.info.x11.lock_func();
        static Atom demandsAttention = XInternAtom(xdisplay, "_NET_WM_STATE_DEMANDS_ATTENTION", true);
        static Atom wmState = XInternAtom(xdisplay, "_NET_WM_STATE", true);

        XEvent e;
        e.xclient.type = ClientMessage;
        e.xclient.message_type = wmState;
        e.xclient.display = xdisplay;
        e.xclient.window = winId;
        e.xclient.format = 32;
        e.xclient.data.l[1] = demandsAttention;
        e.xclient.data.l[2] = 0l;
        e.xclient.data.l[3] = 0l;
        e.xclient.data.l[4] = 0l;

        if (enable) {
            e.xclient.data.l[0] = 1;
        } else {
            e.xclient.data.l[0] = 0;
        }
        XSendEvent(xdisplay, rootwin, False, (SubstructureRedirectMask | SubstructureNotifyMask), &e);
        sdlinfo.info.x11.unlock_func();
    }
#endif // defined(_WIN32)
}

/*void WindowManagerHelper::flashAnimate() {
#ifdef _WIN32
    FlashWindow(winId(), true);
#endif
}*/